METHOD FOR PRODUCING CV GRAPHITE CAST IRON

Title:

METHOD FOR PRODUCING CV GRAPHITE CAST IRON

Document Type and Number:

Japanese Patent JP2001181779

Kind Code:

A

Abstract:

To provide a CV graphite cast iron for an engine improving the low strength and brittleness of grey cast iron used as the material for an engine, increasing the mechanical properties such as tensile strength, yield strength, an elastic modulus and toughness and simultaneously capable of improving the effect of eliminating noise and vibration and reliability on the capacity and durability of an engine, and also to provide a method for producing the same.

Molten metal obtained by adding magnesium of 0.020 to 0.028 wt.% is added to a metallic mixture essentially consisting of iron and furthermore containing carbon, silicon, manganese, phosphorous, chromium, molybdenum, copper and tin and heated at 1,500 to 1,560°C is poured into a mold, and magnesium is successively added in such a manner that the content of magnesium in the molten metal is controlled to the range of 0.01 to 0.017 wt.% to produce the cast iron.

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Inventors:

BOKU KENSHU
KIM HAK JIN
KIM JONG MOON
JUNG SEUNG CHEAL

Application Number:

JP2000326907A

Publication Date:

July 03, 2001

Filing Date:

October 26, 2000

Export Citation:

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Assignee:

HYUNDAI MOTOR CO LTD

International Classes:

F02F1/00; C21C1/08; C21C1/10; C22C33/08; C22C33/10; C22C37/04; C22C37/10; (IPC1-7): C22C33/10

Attorney, Agent or Firm:

Toru Seya (1 outside)

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